1645020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:84

約数の個数: 144

約数和(自身を含む): 5809440

約数和(自身を除く): 4164420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 37, 38, 39, 45, 52, 57, 60, 65, 74, 76, 78, 90, 95, 111, 114, 117, 130, 148, 156, 171, 180, 185, 190, 195, 222, 228, 234, 247, 260, 285, 333, 342, 370, 380, 390, 444, 468, 481, 494, 555, 570, 585, 666, 684, 703, 740, 741, 780, 855, 962, 988, 1110, 1140, 1170, 1235, 1332, 1406, 1443, 1482, 1665, 1710, 1924, 2109, 2220, 2223, 2340, 2405, 2470, 2812, 2886, 2964, 3330, 3420, 3515, 3705, 4218, 4329, 4446, 4810, 4940, 5772, 6327, 6660, 7030, 7215, 7410, 8436, 8658, 8892, 9139, 9620, 10545, 11115, 12654, 14060, 14430, 14820, 17316, 18278, 21090, 21645, 22230, 25308, 27417, 28860, 31635, 36556, 42180, 43290, 44460, 45695, 54834, 63270, 82251, 86580, 91390, 109668, 126540, 137085, 164502, 182780, 274170, 329004, 411255, 548340, 822510, 1645020]

約数ペア:

[(1, 1645020), (2, 822510), (3, 548340), (4, 411255), (5, 329004), (6, 274170), (9, 182780), (10, 164502), (12, 137085), (13, 126540), (15, 109668), (18, 91390), (19, 86580), (20, 82251), (26, 63270), (30, 54834), (36, 45695), (37, 44460), (38, 43290), (39, 42180), (45, 36556), (52, 31635), (57, 28860), (60, 27417), (65, 25308), (74, 22230), (76, 21645), (78, 21090), (90, 18278), (95, 17316), (111, 14820), (114, 14430), (117, 14060), (130, 12654), (148, 11115), (156, 10545), (171, 9620), (180, 9139), (185, 8892), (190, 8658), (195, 8436), (222, 7410), (228, 7215), (234, 7030), (247, 6660), (260, 6327), (285, 5772), (333, 4940), (342, 4810), (370, 4446), (380, 4329), (390, 4218), (444, 3705), (468, 3515), (481, 3420), (494, 3330), (555, 2964), (570, 2886), (585, 2812), (666, 2470), (684, 2405), (703, 2340), (740, 2223), (741, 2220), (780, 2109), (855, 1924), (962, 1710), (988, 1665), (1110, 1482), (1140, 1443), (1170, 1406), (1235, 1332)]